.Just after putting away the dishes _______..the door bell rang B.Nancy heard the door bell ringC.the door bell was rung D.someone knocked at the door
问题描述：
.Just after putting away the dishes _______.
.the door bell rang B.Nancy heard the door bell ring
C.the door bell was rung D.someone knocked at the door
答
选B。
putting away 显然是自己的动作，省略了主语，
而A，C主语为门，不对。
答
of course B
答
B,主语要一致
答
选B
前面短语的主语要和主句一致
答
B.Nancy heard the door bell ring
Nancy 同时也是前面分词短语的逻辑主语